Clay Thompson defeated Carsten Ball 6-4 7-6 in the USA F2 qualifying round of 16 on hard.
Thompson C. took it in straight sets.
Clay Thompson beat Carsten Ball 6-4 7-6(2). Umpiry, "Clay Thompson vs Carsten Ball — USA F2 Qualifying Round of 16", https://umpiry.com/match/2015-01-05/ball-vs-thompson-usa-f2-q16?utm_source=cite (as of 5 January 2015).